package com.example;

public class MyMach {
    private int add(int a, int b){
        return a + b;
    }

    private int sub(int a, int b){
        return a - b;
    }

    private int mul(int a, int b){
        return a * b;
    }

    private int div(int a, int b){
        return a / b;
    }

}
